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Subject :NSO    Class : Class 4

Three plants (X, Y and Z) were put into three identical containers filled with 500 mL of water as shown in the figure. Some oil was poured into each container which formed a thin layer above water to prevent water loss through evaporation. The containers were kept outdoor at the same place. Which of the following graphs correctly depicts the volume of water in the three containers after two days?


A
B
C
D


Ans 1:

Class : Class 4

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